The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 25, 2004

Filed:

Nov. 07, 2002
Applicant:
Inventors:

Tomomi Mochida, Tokyo, JP;

Tsutomu Nagayoshi, Tokyo, JP;

Tetsuro Sato, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/00 ;
U.S. Cl.
CPC ...
F01D 5/00 ;
Abstract

A flexbeam having a flapping part and a feathering and lead-lag part has a first composite member having a plurality of first layers and a plurality of second layers; and a second composite member having a plurality of loop members; wherein the flapping part is constructed such that the first layers of the first composite member and the second composite members arranged on the leading edge side and the trailing edge side of the beam, are jointed integrally and also the second composite members are separated by the second layers of the first composite member in a vertical direction and are jointed to the second layers, and the feathering and lead-lag part is constructed by jointing integrally the second layers of the first composite member arranged in a center of thickness, and the second composite members arranged on upper and lower surfaces of the second layers.


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